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| 28 | #ifndef TTM_MEMORY_H |
28 | #ifndef TTM_MEMORY_H |
| 29 | #define TTM_MEMORY_H |
29 | #define TTM_MEMORY_H |
| Line 30... | Line 30... | ||
| 30 | 30 | ||
| 31 | //#include |
31 | //#include |
| - | 32 | #include |
|
| 32 | #include |
33 | #include |
| 33 | //#include |
34 | #include |
| 34 | #include |
35 | #include |
| 35 | //#include |
36 | //#include |
| Line 36... | Line 37... | ||
| 36 | //#include |
37 | #include |
| 37 | 38 | ||
| 38 | /** |
39 | /** |
| 39 | * struct ttm_mem_shrink - callback to shrink TTM memory usage. |
40 | * struct ttm_mem_shrink - callback to shrink TTM memory usage. |
| 40 | * |
41 | * |
| 41 | * @do_shrink: The callback function. |
42 | * @do_shrink: The callback function. |
| 42 | * |
43 | * |
| 43 | * Arguments to the do_shrink functions are intended to be passed using |
44 | * Arguments to the do_shrink functions are intended to be passed using |
| 44 | * inheritance. That is, the argument class derives from struct ttm_mem_srink, |
45 | * inheritance. That is, the argument class derives from struct ttm_mem_shrink, |
| Line 45... | Line 46... | ||
| 45 | * and can be accessed using container_of(). |
46 | * and can be accessed using container_of(). |
| 46 | */ |
47 | */ |
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| 57 | * @swap_queue: A workqueue to handle shrinking in low memory situations. We |
58 | * @swap_queue: A workqueue to handle shrinking in low memory situations. We |
| 58 | * need a separate workqueue since it will spend a lot of time waiting |
59 | * need a separate workqueue since it will spend a lot of time waiting |
| 59 | * for the GPU, and this will otherwise block other workqueue tasks(?) |
60 | * for the GPU, and this will otherwise block other workqueue tasks(?) |
| 60 | * At this point we use only a single-threaded workqueue. |
61 | * At this point we use only a single-threaded workqueue. |
| 61 | * @work: The workqueue callback for the shrink queue. |
62 | * @work: The workqueue callback for the shrink queue. |
| 62 | * @queue: Wait queue for processes suspended waiting for memory. |
- | |
| 63 | * @lock: Lock to protect the @shrink - and the memory accounting members, |
63 | * @lock: Lock to protect the @shrink - and the memory accounting members, |
| 64 | * that is, essentially the whole structure with some exceptions. |
64 | * that is, essentially the whole structure with some exceptions. |
| 65 | * @zones: Array of pointers to accounting zones. |
65 | * @zones: Array of pointers to accounting zones. |
| 66 | * @num_zones: Number of populated entries in the @zones array. |
66 | * @num_zones: Number of populated entries in the @zones array. |
| 67 | * @zone_kernel: Pointer to the kernel zone. |
67 | * @zone_kernel: Pointer to the kernel zone. |
| Line 75... | Line 75... | ||
| 75 | #define TTM_MEM_MAX_ZONES 2 |
75 | #define TTM_MEM_MAX_ZONES 2 |
| 76 | struct ttm_mem_zone; |
76 | struct ttm_mem_zone; |
| 77 | struct ttm_mem_global { |
77 | struct ttm_mem_global { |
| 78 | // struct kobject kobj; |
78 | // struct kobject kobj; |
| 79 | struct ttm_mem_shrink *shrink; |
79 | struct ttm_mem_shrink *shrink; |
| 80 | // struct workqueue_struct *swap_queue; |
80 | struct workqueue_struct *swap_queue; |
| 81 | // struct work_struct work; |
81 | struct work_struct work; |
| 82 | // wait_queue_head_t queue; |
- | |
| 83 | spinlock_t lock; |
82 | spinlock_t lock; |
| 84 | struct ttm_mem_zone *zones[TTM_MEM_MAX_ZONES]; |
83 | struct ttm_mem_zone *zones[TTM_MEM_MAX_ZONES]; |
| 85 | unsigned int num_zones; |
84 | unsigned int num_zones; |
| 86 | struct ttm_mem_zone *zone_kernel; |
85 | struct ttm_mem_zone *zone_kernel; |
| 87 | #ifdef CONFIG_HIGHMEM |
86 | #ifdef CONFIG_HIGHMEM |